Archaic objects,

Nos. 11001-12000 and 14001-14754.

The treasure of the Oxus, with other objects from ancient Persia and India , bequeathed to the Trustees of the British museum by Sir Augustus Wollaston Franks ...

At head of title: Franks bequest.

Exhibition of the Kevorkian collection : including objects excavated under his supervision : exhibited at the galleries of Charles of London ... New York, March-April, 1914.

Cover title: Exhibition of Muhammedan-Persian art.

The amateur microscopist: or, Views of the microscopic world, a handbook of microscopic manipulation and microscopic objects ... illustrated with 247 figures on wood and stone.

Mode of access: Internet.

Man and his relations: illustrating the influence of the mind on the body; the relations of the faculties to the organs, and to the elements,objects and phenomena of the external world.

Mode of access: Internet.

Catalogues of Antiquities: Art Objects - Egyptian, Greek, Roman, etc., and Native Art from All Areas of the World

Mode of access: Internet.

The domestic encyclopaedia; or, A dictionary of facts, and useful knowledge: : comprehending a concise view of the latest discoveries, inventions, and improvements, chiefly applicable to rural and domestic enconomy; together with descriptions of the most interesting objects of nature and art; the history of men and animals, in a state of health or disease; and practical hints respecting the arts and manufactures, both familiar and commercial. Illustrated with numerous engravings and cuts. In four volumes. Volume first[-fourth]. /

Includes indexes.

Outflow of a jet of compressed air into moving air.

"A translation."

The Carnegie Institute catalogue of paintings sculpture, and other objects in the Department of Fine Arts, August, 1903.

Mode of access: Internet.

The nature and objects of the Royal Institution of Great Britain for the promotion, diffusion, and extension of science and of useful knowledge ...

Mode of access: Internet.

Catalogue of a loan exhibition of ancient Chinese paintings, sculptures & jade objects from the collection formed by Charles Lang Freer & given by him to the nation through the Smithsonian Institution. Exhibition November 15 to December 8, 1917.

Comp. by Frederich William Gookin.

Federal Employees Flexible and Compressed Work Schedules Act of 1982.

At head of title: 97th Congress, 2d Session, House of Representatives, report no. 97-433.

Catalogue of the pictures, drawings, etchings and objects of art /

Compiled by P. Zilcken.

Exploratory modelling of grinding pressure within a compressed particle bed

With increasing industry interest in high pressure roll grinding (HPGR) technology, there is a strong incentive for improved understanding of the nature of grinding pressure that exists in the interior of a compressed particle bed. This corresponds to the crushing region of the HPGR. The relationship between applied pressure (stress) to the particle bed and induced pressure (stress) within particles and at contact points between particles is of particular interest. A detailed parametric investigation is beyond the scope of this exploratory paper. However, this exploratory investigation does suggest some interesting behaviour. The compressed particle bed within an 80 turn diameter piston has been modelled using Particle Flow Code for three dimensions. PFC3D is a discrete element code. The total number of simulated particles was 1225 and 2450 for two beds of different thickness. Particle diameters were uniformly distributed between 4 and 4.5 mm. The results of the simulations show that stress intensity within the simulated particle beds and within the observed particles increased with increase of the applied stress. The intensity of the average vertical stress in the selected particles tended to be comparable with the intensity of the pressure applied to the surface of particle bed and was only occasionally higher. However, the stress at contact points between particles could be several times higher. In a real crusher, such high stress amplification at contacts will quickly decrease due to local crushing and a resultant increase the size of the contact area. Therefore, its significance is likely to be relatively small in an industrial context. The modelling results also suggest that failure within the particle bed will progress from the crushing surface towards the depth of the bed. (c) 2006 Elsevier Ltd. All rights reserved.